a/v desynchronization

[Peter82kr]

Environment Info OS : Windows 10 x64 (16299) CPU: Intel Core i7-4790K @ 4.00GHz [TB: 4.40GHz] (4C/8T) RAM: Used 4022 MB, Total 16341 MB GPU: GeForce GTX 1060 6GB (10 EU) @ 1708 MHz (388.59) List of available features. Codec: H.264/AVC Max Bframes               4 RC Modes                  63 Field Encoding            yes MonoChrome                no FMO                       no Quater-Pel MV             yes B Direct Mode             yes CABAC                     yes Adaptive Transform        yes Max Temporal Layers       0 Hierarchial P Frames      no Hierarchial B Frames      no Max Level                 51 Min Level                 1 4:4:4                     yes Max Width                 4096 Max Height                4096 Dynamic Resolution Change yes Dynamic Bitrate Change    yes Forced constant QP        yes Dynamic RC Mode Change    no Subframe Readback         yes Constrained Encoding      yes Intra Refresh             yes Custom VBV Bufsize        yes Dynamic Slice Mode        yes Ref Pic Invalidiation     yes PreProcess                no Async Encoding            yes Max MBs                   65536 MAX MB per sec            983040 Lossless                  yes SAO                       no Me Only Mode              yes Lookahead                 yes AQ (temporal)             yes Weighted Prediction       yes Max LTR Frames            8 10bit depth               no Codec: H.265/HEVC Max Bframes               0 RC Modes                  63 Field Encoding            no MonoChrome                no Quater-Pel MV             yes B Direct Mode             no Max Temporal Layers       0 Hierarchial P Frames      no Hierarchial B Frames      no Max Level                 62 Min Level                 1 4:4:4                     yes Max Width                 8192 Max Height                8192 Dynamic Resolution Change yes Dynamic Bitrate Change    yes Forced constant QP        yes Dynamic RC Mode Change    no Subframe Readback         yes Constrained Encoding      no Intra Refresh             yes Custom VBV Bufsize        yes Dynamic Slice Mode        yes Ref Pic Invalidiation     yes PreProcess                no Async Encoding            yes Max MBs                   262144 MAX MB per sec            983040 Lossless                  yes SAO                       yes Me Only Mode              yes Lookahead                 yes AQ (temporal)             no Weighted Prediction       yes Max LTR Frames            7 10bit depth               yes

now i try reproduce your procedure and post reply after that.

EDIT:
What I did:

• start Hybrid
  
• set 'Base->Processing->Audio' to 'passthrough (all)'
  
• set base > processing > video >  passtrough all only one difference with your procedure. its ok?
  
• made sure 'Filtering->Support' was set to Avisynth
  
• enabled 'Config->Internals->Avisynth->Always use Avisynth'
  
• set an output file
  
• added a new job
  
• started the job processing
  

and output file is desynced